comctl32: add ListView_SetCheckState and ListView_GetCheckState with tests(try4)

[Dawncrow]

now with LVITEMW and SNDMSGW
---
  dlls/comctl32/listview.c       |    1 -
  dlls/comctl32/tests/listview.c |    8 ++++++++
  include/commctrl.h             |    6 ++++++
  3 files changed, 14 insertions(+), 1 deletions(-)


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